Means for driving spindles



No Model.)

H. GREENWOOD. MEANS FOR DRIVING SPINDLES..

No. 478,280. Patented July 5, 1892 'ml nomma ruins no., mmo-Lrmc.,wAsnmaToN, n. c.

UNITED STATES PATENT OFFICE.

HENRY GREENWOOD, OE eILBERTvILLE, MASSAOIIUSETTS.

MEANS FOR DRIVING SPINDLE-S..

SPECIFICATION forming part of Letters Patent N o. 478,280, dated J' uly5, 1,892.y -Application led November 27, 1891. Serial No. 413,194. `(Nomodel.)

To all whom it may concern:

Be it known that I, HENRY GREENWOOD, of Gilbertville, county ofVOrcester, State of Massachusetts, have invented an Improvement in Meansfor Driving Spindles, of which the following description, in connectionwith the accompanying drawings, is a specification, like letters andfigures on the drawings representing like parts.

This invention relates to spinning, doubling, twisting, winding, orother machines employing rotating spindles, the object of the inventionbeing to provide improved ine-ans or devices for driving a series ofspindles by a single band, whereby all friction due to rubbing of theband at different points and all lost motion when the direction ofrotation is changed may be avoided. l

Figure l represents in front elevation a series of spindles driven inaccordance with this invention; Fig. 2, a sectional plan view of thesame on line a: Fig. l; and Fig 3, a sectional detail to be referred to.

Referring to the drawings, A represents the frame of a machine of one ofthe classes above referred to and to which my invention is applied, ithaving bearings for the rotating driving-cylinder a, about which theusual band or bands are passed which drive the spindles. The severalspindles b, of usual form and construction and suitably mounted in theframe A, are each provided with usual whirls b. The end spindles 5 6 ofthe series are each provided with a second whirl b2, larger in diameterthan the whirls b', and preferably arranged below the latter, saidwhirls b2 being loosely7 journaled about their respective spindles andprovided, preferably, with hubs b3, which run in the cup-shaped recessesin the step-collars b4, which latter are driven tightly n pon thespindles, as best represented in Figs. l and 3. The hubs of the whirlsb2 are provided with suitable oil-passages bx, which direct the oil tothe spindle, the cup-shaped depressions in the step-collars b4collecting the oil, so that the loose whirls always run smoothly in oil.

The band d, which drives all the spindles of the series, is passed aboutthe cylinder a and the whirls b of the several spindles, as bestindicated in Fig. 2. By referring to said figure and starting from thepoint 10 the band passes about the cylinder, thence by 11 to and aboutthe whirl b on the end spindle 5, returning by 12 to and about thecylinder again, continuing in this manner, as shown, until the endspindle 6 is reached, when the band after passing about the cylinderextends at 13 to and about the loose Whirl bzon said end spindle,thencealong in front of the spindles, as' indicated at 14, 'to and aboutthe loose whirl b2 on the end spindle 5 to the point l0 again. It isclear that rotationof the cylinder in either direction will causeacorresponding uniform rotation of all the spindles of the series, thusinsuring a uniform twist, and the loose whirls b2 being larger indiameter than the whirls b prevent the portions of the band at l0 and 1land l2 and 13 from contacting with' each other tocause friction. Theloose or guide whirls b2,being journaled about the end spindles of theseries, do not yield and it is not necessary that they should, and sothe direction of rotation of the spindles may be instantly changedwithout causing a variation inthe speed of rotation of some of them, asis common in devices of this class at the present time.

This invention is not limited to the particular construction shown, norto the application of the invention to any particular class of machine,the gist of the invention lying in providing the end spindles oftheseries with loose or guide whirls for the return band, larger indiameter'than said driving-whirls, the band extending from the drivingmechanism around the vdriving-whirls and returning around'theguide-whirls.

I claim- A frame and a driving-cylinder journaled therein, combined witha series of spindles each provided with a driving-whirl, theend spindlesof the series having in addition loose guidewhirls larger in diameterthan the said driving-whirls, and the endless Vband d, extended aroundthe driving-cylinder and each of said driving-whirls, and returnedaround the guide-whirls of the end spindles, substantially as described.

In testimony whereof I have signed my nameto this specification in thepresence of two subscribing witnesses.

HENRY GREENWOOD. lVitnesses:

AUSTIN J HOBAN, SAMUEL RAMSDEN.

IOO

